Disclosed is a combined-type perfusable pedicle screw system, comprising a nail body (1) having a hollow structure (9) inside, an integrally formed cross bar fixing structure (2) located on a tail end of the nail body (1), a perfusion tube (3) with one end connected to one end of the nail body (1), and a push rod cooperating with the perfusion tube (3). The nail body (1) is provided with external threads (4), and the nail body (1) is provided with an exudate outlet (5) in communication with the hollow structure (9). The perfusion tube (3) is of a through-hole structure, with the end thereof connected to the nail body (1) being provided with a connection structure (6) matching a hollow wall at the tail end of the nail body (1), and the other end thereof being provided with an injection port (7). An inner core (11) matching the shape of the hollow structure (9) is provided inside the hollow structure (9). After being filled with polymethyl methacrylate (PMMA), in the combined-type perfusable pedicle screw system, the hollow structure is blocked using the inner core, so that the PMMA inside the nail body, the PMMA inside the hollow structure, and the inner core form an integral connection, thereby greatly improving the fixing strength and stability of the screw with less possibility that the screw becomes loose or is pulled out. The system is also suitable for people with osteoporosis.La présente invention concerne un système de vis pédiculaire à perfusion de type combiné, comprenant un corps de clou (1) ayant une structure creuse (9) à lintérieur, une structure de fixation de barre transversale formée dun seul tenant (2) située sur une extrémité arrière du corps de clou (1), un tube de perfusion (3) ayant une extrémité reliée à une extrémité du corps de clou (1), et une tige de poussée coopérant avec le tube de perfusion (3). Le corps de clou (1) comporte des filetages extérieurs (4), et le corps de clou (1) est pourvu dune sortie dexsudat (5) en communication avec la
